Heel cushion



FIG. 1 is a perspective view of a heel cushion showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a top plan view thereof; and

FIG. 4 is a rear elevational view thereof; and

FIG. 5 is a bottom plan view thereof.

In the various figures of the drawing, the various stippling and hatching is intended as surface shading only and does not connote color. In addition, in the drawing. 

The ornamental design for a heel cushion, as shown. 